A certificate of conformity is issued by an authorized party (sometimes the manufacturer, sometimes an independent laboratory) and states that the product meets the required standards or specification.

NIST Handbook 44 (HB44) “Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices,” is a nationally adopted standard for evaluating and verifying the accuracy of weighing and measuring equipment which this tape measure meets.  

Tape Measures

STHT30817 

STHT30814
30-455
30-485
30-495

Certificate of Conformity 

Stanley Black & Decker here by certifies that the technical characteristics of the STHT30817S, STHT30814, 30-455, 30-485, and 30-495 Hi-Vis LeverLock tape rules it markets are in conformity with the Company specifications. These products are subjected to all the necessary inspections during their production, in order for them to meet the
approved quality.

To see the full document detailed please refer to the attached documents below.